Perhaps you should try some spelling variations:
"dung huong anh slippers" » "dung thuong anh slippers", "dung phuong anh slippers", "dong huong anh slippers", "dung khuong anh slippers", "dung hong anh slippers", "dung huong anh slippery", "dung huong anh grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung huong anh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung huong anh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung huong anh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung huong anh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.